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Old 05-23-2012, 03:50 PM   #1 (permalink)
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Default tire pressure

my 2012 insight lx tire pressure is recommed at 33psi. i notice some members put more air in the tires,does this increase in air pressure improve mpg. is putting more air in the tires safe?
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Old 05-23-2012, 03:57 PM   #2 (permalink)
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More air pressure will increase your mileage. There are a lot of us using higher than sidewall max pressure and I have not heard of anyone having problems. At least one member is running 80psi on the first gen Insight RE 92 tires and has been for years.

The only blowout that I read about was caused by running near flat, I'm pretty sure.

If you are worried only inflate to the sidewall max pressure listed on the tire, but it does make a differance.
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Old 05-23-2012, 08:02 PM   #3 (permalink)
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Running higher tire pressure(36 PSI or higher) is only going to minimally increase MPG;while making for a louder, harsher ride and decreasing traction.

I not only run around 35 PSI but have a touring tire in 195 60 15 and get anywhere between 44-49 MPG(actual) per tank. (depending on the ratio of city to highway driving)
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Old 05-23-2012, 09:40 PM   #4 (permalink)
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Default tire pressure

thank you. i have ep422 tires on my insight, car handles good and average 44mpg.
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Old 05-24-2012, 12:28 PM   #5 (permalink)
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Quote:
Originally Posted by firsthonda View Post
Running higher tire pressure(36 PSI or higher) is only going to minimally increase MPG;while making for a louder, harsher ride and decreasing traction.

I not only run around 35 PSI but have a touring tire in 195 60 15 and get anywhere between 44-49 MPG(actual) per tank. (depending on the ratio of city to highway driving)
atleast with the insight the ride "harshness" by upping your pressur to the sidewall specs is minimal if at all noticable.

You forget one large aspect. The tires will last MUCH LONGER!

lower pressure you will starting going bald on the edges much earlier causing you to have a shorter life span on the tires. This is esspecially evident if you ever had a very heavy car.
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Old 05-28-2012, 04:14 PM   #6 (permalink)
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I have a 2010 and right now I have mine set at 45 per tire with the rating at 44. The ride can be a little rough on some roads but I haven't had any trouble. I tried lowering them to 35 and it really does make a huge difference in how far I can coast when I'm rolling up to a light or a stop sign. I personally like having them higher with the ride and rolling resistance. Right now I'm showing 64 mpg with mixed driving over about 185 miles on this tank. So its a small portion of getting better mileage but it can help.
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Old 05-28-2012, 04:31 PM   #7 (permalink)
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jtshuey:
Please post your location in your UserCP/Details/Location.

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Old 05-29-2012, 12:40 AM   #8 (permalink)
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Quote:
Originally Posted by jtshuey View Post
I have a 2010 and right now I have mine set at 45 per tire with the rating at 44. The ride can be a little rough on some roads but I haven't had any trouble. I tried lowering them to 35 and it really does make a huge difference in how far I can coast when I'm rolling up to a light or a stop sign. I personally like having them higher with the ride and rolling resistance. Right now I'm showing 64 mpg with mixed driving over about 185 miles on this tank. So its a small portion of getting better mileage but it can help.
64 MPG is fantastic!
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Old 05-29-2012, 12:43 PM   #9 (permalink)
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Hes in NC. Weve exchanged mpg secrets offline.


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Old 06-09-2012, 06:51 AM   #10 (permalink)
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I have Conti Pro Contact Eco Plus for about 7k miles. Run at 40psi, sidewall rating 44psi. Ride is a bit firm. Commute about 150mi a day. Highway. Average 48-49 at 70-71mph.
Tire pressure will effect MPG 1-2 for every 2-4 psi increase.
All depends on the ride you like.
Driving habits make for better MPG.
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